C) m1 = 1 кг, m2 = 3 кг. Is the balance correct?

Analysis:

• The third image shows a balance scale. On the left side, there is a mass labeled m1 = 1 кг placed at the 1 mark. On the right side, there is a mass labeled m2 = 3 кг placed at the 3 mark.
• Left side moment: 1 кг * 1 unit = 1 unit-kg
• Right side moment: 3 кг * 3 units = 9 unit-kg
• Since 1 is not equal to 9, the balance is incorrect.

Answer: Incorrect